L. Frank Baum (1856-1919) was an American author of children's literature and pioneer of fantasy fiction. He demonstrated an active imagination and a skill for writing from a young age, and was encouraged by his father who bought him the printing press with which he began to publish several journals. Although he had a lifelong passion for theater, Baum found success with his novel The Wonderful Wizard of Oz (1900), a self-described "modernized fairy tale" that led to thirteen sequels, inspired several stage and radio adaptations, and eventually, in 1939, was immortalized in the classic film starring Judy Garland.

On the island of Pingaree, far from the Land of Oz, the good king Rinkitink of Gilgad is enjoying a long-awaited holiday. When intruders from the nearby islands of Regos and Coregos attack, his vacation comes to an untimely-and unexpected-end. Left on Pingaree with Prince Inga-whose parents have been kidnapped-Rinkitink is recruited to help the young royal save his family from slavery, and his kingdom from certain doom. Rinkitink in Oz, the tenth installment in L. Frank Baum's beloved fantasy series, is a tale of excitement and adventure for children and adults alike.